DIN436 Sqaure Washer Stainless Steel 304

描述

1. Robust, Corrosion-Resistant Load Distribution
   • Fabricated to DIN 436 geometry in austenitic 304/316 stainless steel, the square plate washer delivers uniform clamp force over a wide footprint, preventing bolt-head pull-through and surface brinelling on soft or slotted members.
   • 18 % Cr / 8–10 % Ni chemistry provides intrinsic resistance to chlorides, urban pollution, and industrial condensates from −200 °C to +350 °C without red-rust formation or galvanic staining.
   • Laser-cut edges and ground faces (Ra ≤ 1.6 µm) ensure flatness ≤ 0.2 mm per 100 mm, giving reliable preload even when used with high-strength Class 10.9 fasteners.
   • The square profile resists rotation under dynamic shear, maintaining joint integrity in vibrating or thermally cycling assemblies.
2. Wide, Cross-Industry Application Spectrum
   • Structural Steel & Civil Works: Spreads loads beneath tie-rod nuts on I-beam webs, purlins, and base plates, eliminating the need for thick shims or backing plates.
   • Timber Construction & Formwork: Protects wood fibres from localized crushing when anchoring ledger boards, cribbing towers, or scaffold ties.
   • Renewable Energy, HVAC & Utilities: Secures solar-panel rails, wind-tower access ladders, and large-bore pipe hangers exposed to coastal weather and de-icing salts.
   • Marine, Food-Process & Clean-Room Equipment: Provides non-contaminating, easy-to-wash hardware interfaces where painted carbon steel is prohibited.
3. Installer-Friendly, Time-Saving Handling
   • Large center hole tolerances accommodate hot-dip-galvanized or painted bolts without reaming; chamfered entry eases fit-up on skewed rods.
   • Square outline simplifies alignment: one flat edge seats flush against channel webs or beam flanges, preventing washer spin during torque-up.
   • Supplied loose, in stackable kits, or on palletized trays; each piece can be laser-etched with nominal bolt size for rapid on-site verification.
   • Smooth stainless surface offers a stable, lubricant-free friction coefficient, enabling accurate torque-to-tension conversion using standard wrenches—no special tools or coatings required.
4. Certified Quality & Long-Term Durability
   • 100 % optical inspection verifies outer-edge squareness ≤ 0.05 mm, hole concentricity ≤ 0.05 mm, and thickness ± 0.05 mm; Cp/Cpk ≥ 1.67 records are archived for ISO 9001, EN 1090, and IATF 16949 traceability.
   • Parts are passivated to ASTM A967, removing free iron and enhancing pitting resistance; optional vibratory polishing achieves Ra ≤ 0.4 µm for hygienic or aesthetic applications.
   • Salt-spray, cyclic-humidity, and 1 000-h UV ageing tests show zero strength loss or discoloration, validating suitability for coastal, desert, and alpine climates.
   • Lot-level QR codes link each washer to melt chemistry, hardness profile, and dimensional reports, giving engineers full transparency when specifying components for safety-critical connections across industries.